Sydney
Australia
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Sydney, Australia

The landmarks of the city of Sydney, Australia viewed from above the vast Parramatta River
The landmarks of the city of Sydney, Australia viewed from above the vast Parramatta River
August, the last month of the winter, in Sydney, is also an enjoyable month, with average temperature ranging between min 9°C (48.2°F) and max 17.8°C (64°F).

Temperature

In Sydney, the average high-temperature is almost the same as in July - a still enjoyable 17.8°C (64°F). In August, in Sydney, the average low-temperature is 9°C (48.2°F).

Humidity

The least humid month in Sydney is August, with an average relative humidity of 49%.

Rainfall

In August, in Sydney, the rain falls for 10.4 days. Throughout August, 79.8mm (3.1") of precipitation is accumulated. Throughout the year, there are 143.4 rainfall days, and 1212.1mm (47.7") of precipitation is accumulated.

Sea temperature

In Sydney, the average water temperature is 18.8°C (65.8°F). For most, swimming in 18.8°C (65.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

In Sydney, the average length of the day in August is 10.9h.

Sunshine

Months with the most sunshine in Sydney are August through October and December, with an average of 7.9h of sunshine.

UV index

In August, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
The average daily UV index of 4 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.

What is the temperature in August in Sydney?

The average high-temperature, in August, is 17.8°C (64°F), while the average low-temperature is 9°C (48.2°F).

What is the least humid month in Sydney?

The least humid month in Sydney is August, with an average relative humidity of 49%.

What is the average humidity in August in Sydney?

In August, the average relative humidity in Sydney, Australia, is 49%.

How many days does it rain in August in Sydney?

In Sydney, Australia, in August, during 10.4 rainfall days, 79.8mm (3.1") of precipitation is typically accumulated.

How cold is the water in August in Sydney?

In August, the average sea temperature in Sydney is 18.8°C (65.8°F). For swimming, a surface water temperature of 18.8°C (65.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Sydney have in August?

The average length of the day in August is 10.9h.

What are the months with the most sunshine in Sydney?

Months with the most sunshine in Sydney are August through October and December, with an average of 7.9h of sunshine.

How long on average sun shines in August in Sydney?

In August, the average sunshine is 7.9h.

How high is the UV index in August in Sydney?

The average daily maximum UV index in August in Sydney, Australia, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in August - Sydney, Australia
  • Average high temperature in August: 17.8°C

The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is July (16.3°C).

  • Average low temperature in August: 9°C

The month with the highest average low temperature is February (18.8°C).
The coldest month (with the lowest average low temperature) is July (8.1°C).

Average humidity in August - Sydney, Australia
  • Average humidity in August: 49%

The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is August (49%).

Average rainfall in August - Sydney, Australia
  • Average rainfall in August: 79.8mm

The wettest month (with the highest rainfall) is June (131.9mm).
The driest month (with the lowest rainfall) is September (68.3mm).

Average rainfall days in August - Sydney, Australia
  • Average rainfall days in August: 10.4 days

The month with the highest number of rainy days is March (13.6 days).
The month with the lowest number of rainy days is August (10.4 days).

Average sea temperature in August - Sydney, Australia
  • Average sea temperature in August: 18.8°C

The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).

Average daylight in August / Average sunshine in August - Sydney, Australia
  • Average daylight in August: 10.9h

The month with the longest days is December (Average daylight: 14.4h).
The month with shortest days is June (Average daylight: 9.9h).

  • Average sunshine in August: 7.9h

Months with most sunshine are August, September, October and December (Average sunshine: 7.9h).
The month with least sunshine is June (Average sunshine: 5.9h).

Average UV index in August - Sydney, Australia
  • Average UV index in August: 4

Months with the highest UV index are January and December (UV index 12).
The month with the lowest UV index is June (UV index 2).